Expert Window Installation & Replacement in Westchester
Window Installation in Westchester
40 Years of Experience
Certified Professionals
Superior Workmanship with Proven Reputation
Stress-Free Process
Thermo-Seal Windows, Siding & Roofing, Inc.
Expert Window Installation Near You in Westchester — Trusted by Homeowners Since 1985
When homeowners across Westchester search for window installation near me, they turn to Thermo-Seal for dependable service and decades of hands-on experience. Since 1985, we’ve provided expert window installation that improves comfort, lowers energy usage, and enhances curb appeal—using premium products from Andersen, Pella, and Harvey.
Our certified in-house crew handles every job—no subcontractors—ensuring precision and professionalism at every step. Thermo-Seal makes window installation in Westchester seamless and worry-free, delivering lasting results you can count on.
From riverfront homes in Yonkers to historic properties in Scarsdale, Westchester homes deserve expertly installed windows that stand the test of time—and Thermo-Seal provides exactly that.
Thermo-Seal window Installation in Westchester
Professional Window Installation in Westchester That Transforms Your Home
Installing new windows not only enhances your home’s appearance—it plays a key role in improving insulation, cutting noise, and boosting energy savings. At Thermo-Seal, we offer customized window installation in Westchester that’s built around performance, design, and long-term value.
We install a variety of window types, including:
✔ Double-hung and casement windows for timeless style and airflow
✔ Bay and bow windows to increase light and expand living space
✔ Sliding and picture windows for modern views and minimal framing
✔ Custom windows crafted for architectural uniqueness or historical layouts
Each Westchester window installation is done with detailed attention to sealing, fit, and energy efficiency—delivering maximum comfort and performance.
Why Homeowners Choose Thermo-Seal for Window Installation in Westchester
For over 40 years, Thermo-Seal has been a top choice for window installation in Westchester and throughout the Tri-State region. We combine experienced craftsmanship, trusted brands, and reliable customer care to deliver quality work every time.
Here’s why Westchester homeowners choose Thermo-Seal:
✔ Certified Window Experts
As an Andersen Certified Contractor and member of America’s Home Remodeling Group, our training and knowledge set us apart.
✔ Premium Brand Windows
We use only the best products—Andersen, Pella, and Harvey—ensuring beauty, durability, and insulation.
✔ No Subcontracting
Every window installation in Westchester is performed by our own skilled team for consistent, high-quality results.
✔ Award-Winning Reputation
We’re proud of our A+ BBB rating and Angi Super Service Award, earned through years of excellent service.


What’s Included in Our Window Installation Service in Westchester
Thermo-Seal offers full-service window installation in Westchester—making the entire process easy, efficient, and backed by decades of experience.
Here’s what’s included:
✔ Free In-Home Quote: We take precise measurements, review styles, and provide a no-obligation estimate.
✔ Window Selection: Choose from energy-saving options that suit your Westchester home’s design.
✔ Professional Installation: Our team installs according to exact manufacturer specs for long-lasting performance.
✔ Clean-Up & Final Walkthrough: We keep your home clean and ensure every window operates properly.
✔ Reliable Warranty: Your project is backed by leading manufacturer warranties and our satisfaction guarantee.
How Long Does a Window Installation Take in Westchester?
Most window installation jobs in Westchester are completed within a single day. Our in-house crew works efficiently and carefully—delivering perfectly sealed, aligned windows while minimizing disruption to your home.
How Much Does Window Installation Cost in Westchester?
Window installation pricing in Westchester depends on factors like style, size, and window quantity. Thermo-Seal offers free in-home consultations and transparent quotes—no hidden fees, no surprises.
We’ll guide you to the best fit for your space and your budget. And with 0% interest financing available, upgrading your windows in Westchester is easier than ever.
The Benefits of Professional Window Installation in Westchester
Expert window installation in Westchester protects your home from drafts, moisture, and noise—while adding long-term value. Thermo-Seal ensures each installation is done right, so you can enjoy the results for years to come.
✔ Reduce utility bills with insulated, airtight windows
✔ Improve comfort by blocking cold air and excess heat
✔ Enhance curb appeal with beautifully installed window designs
✔ Increase property value through energy-efficient upgrades
✔ Keep out moisture, outside air, and city noise
With Thermo-Seal, your Westchester window installation will deliver noticeable improvements in every season.
Frequently Asked Questions About Window Installation in Westchester
1. Do I need to replace all my windows at once?
Not necessarily. While many homeowners choose to install all new windows for consistent performance and aesthetics, Thermo-Seal can complete window installation in phases that fit your budget and timeline.
2. Are new windows really more energy-efficient?
Yes. Modern windows use advanced glass coatings, insulated frames, and precision sealing to reduce energy loss. A professional window installation ensures these benefits are fully realized, saving you money year-round.
3. Can I install windows myself?
DIY installation can lead to air leaks, moisture damage, and voided warranties. Professional window installation by Thermo-Seal ensures manufacturer compliance, long-term durability, and a perfect fit.
4. How do I prepare my home for installation day?
Clear access to windows by moving furniture, curtains, or blinds. Our team handles the rest—protecting floors, removing old windows, and completing your new window installation with care and efficiency.
5. What makes Thermo-Seal different from other window installers?
Thermo-Seal has been performing window installation near me since 1985 with certified in-house professionals, top-quality materials, and award-winning service. Our legacy of trust, craftsmanship, and accountability sets us apart from typical contractors.
Schedule Your Free Window Installation Estimate Today
When it comes to window installation near me, no one matches Thermo-Seal’s proven experience, product quality, and customer satisfaction. Since 1985, we’ve helped thousands of homeowners replace and install windows that look beautiful and perform flawlessly for decades.
Contact us today to schedule your free in-home estimate and see why Thermo-Seal is the Tri-State’s trusted name in window installation.
📞 Call (866) 901-6808 or visit one of our offices in Rockville Centre, Rye, Stamford, or Melville to get started.
- Rockville Centre
- Huntington
- Melville
- Farmingdale
- Plainview
- Syosset
- Roslyn
- Manhasset
- Oyster Bay
- Hauppauge
- Smithtown
- Garden City
- Massapequa
- Westbury
- Nassau County
- Suffolk County
- Long Island
- New York City
- Westchester
- Rye
- Scarsdale
- Larchmont
- Mamaroneck
- Yonkers
- White Plains
- New Rochelle
- Bronxville
- Pelham
- Harrison
- Queens
- The Bronx
- Fairfield County
- Stamford
- Greenwich
- Darien
- Westport
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Services We Offer:
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For a limited time, enjoy convenient financing with 0% interest for up to 25 months.
Contact Info.
Phone Number:
Email Address:
Showroom:
456 Sunrise Highway, Rockville Center NY 11570 - (516) 689-7214
Rye Corporate Office:
411 Theodore Fremd Avenue, Rye NY 10580 - (914) 635-3748
Stamford Office:
263 Tresser Blvd., Stamford, CT 06901 - (203) 990-1812
Melville Office:
68 South Service Road., Melville NY 11747 - (631) 710-6937
CLIENT REVIEWS
What Our Clients Are Saying About Us
Thermo-seal Windows provides exceptional customer service alongside high-quality products. Recently, I had the majority of my home's windows replaced by Aaron's team, and their performance was nothing short of impressive. They arrived on time, maintained a tidy work area, and dedicated themselves to ensuring a perfect installation of the windows.
Aaron and his team were amazing, from start to finish! They worked with us every step of the way and Aaron was always just a call or text away to answer any questions we had. The windows are perfect and we love them. We highly recommend working with Aaron and his team. They are professional, courteous and their work is top notch!
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